Nptel Advanced Machining Processes week 0 solution

1 point

In Abrasive jet machining, nozzle diameter is 1 mm, jet velocity is 200m/s. find out volumetric flow rate of (cm3/s) of the carrier gas and abrasive mixture, Va+g?

 (a) 152.8

 (b) 158.5

 (c) 185.4

 (d) 171.5

Yes, the answer is correct.
Score: 1

Accepted Answers:

(b) 158.5

1 point

In AWJM, increase in Stand-off-distance results in

 (a) Higher depth of cut

 (b) Lower depth of cut

 (c) Not significant effect is observed

Yes, the answer is correct.
Score: 1

Accepted Answers:

(b) Lower depth of cut

1 point

AWJM can be used to cut

 (a) Metals

 (b) Non-metals

 (c) Both a & b

Yes, the answer is correct.
Score: 1

Accepted Answers:

(c) Both a & b

1 point

For longer life of nozzle in AWJM, what type of material is used

 (a) Tungsten carbide

 (b) Sapphire

 (c) Boron carbide

 (d) Stainless steel

Yes, the answer is correct.
Score: 1

Accepted Answers:

(b) Sapphire